An efficient and novel porous nanosilica supported TiO2 photocatalyst for pesticide degradation using solar light.

A latex polymer of styrene-acrylic acid emulsion is used as a template for the synthesis of novel porous nanosilica (PNS) material. TiO(2) is dispersed over PNS by solid state dispersion and the composite materials are characterized by XRD, nitrogen adsorption-desorption isotherms, SEM and TEM measurements. The photocatalytic activities of the composite TiO(2)/PNS catalysts are evaluated for degradation of isoproturon pesticide in water with different parameters under solar light.

CeZSM-5--a designer's catalyst for selective synthesis of octahydroacridine.

High activity of cyclohexanone, formaldehyde and ammonia to form 1,2,3,4,5,6,7,8-octahydroacridine (OHA) is observed over different classes of zeolites and molecular modeling studies confirm the suitability of HZSM-5 catalyst for selective synthesis of OHA.